WGU D450 Community Health HESI
Comprehensive Practice Review
Questions and Answers with Detailed Rationales
Aligned with 2026 | 2027 Curriculum Standards
Community and Public Health Nursing
50 Questions | Five Core Content Domains
June 2025
Academic Review Paper
, WGU D450 Community Health HESI | Comprehensive Practice Review
Abstract
This academic review paper presents a comprehensive collection of fifty (50) practice
questions designed for the WGU D450 Community Health course and the Health Education
Systems, Inc. (HESI) standardized examination. The questions are organized across five
foundational domains of community and public health nursing: (1) Foundations of
Community and Public Health Nursing, (2) Epidemiology and Biostatistics in Population
Health, (3) Environmental and Occupational Health, (4) Community Assessment, Planning,
and Program Implementation, and (5) Disaster Management, Global Health, and Vulnerable
Populations. Each question is accompanied by the correct answer and a detailed
evidence-based rationale that explains the underlying public health concepts. The
content is aligned with Healthy People 2030 objectives, the ten Essential Public Health
Services, and the core functions of public health (assessment, policy development, and
assurance). This review serves as an academic resource for nursing students preparing
for licensure and certification examinations in community and public health nursing
practice.
Keywords: community health nursing, HESI examination, public health, epidemiology,
health promotion, disease prevention, environmental health, disaster management,
vulnerable populations, Healthy People 2030
Page 1
, WGU D450 Community Health HESI | Comprehensive Practice Review
Section 1: Foundations of Community & Public Health
Nursing (Q1-Q10)
Q1. A community health nurse is organizing a free blood pressure and blood glucose
screening event at a local community center. Which level of prevention does this
activity represent?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Primordial prevention
Rationale: Secondary prevention focuses on early detection and screening for diseases to
initiate prompt treatment; primary prevention prevents disease onset, and tertiary
prevention manages existing disease to prevent complications.
Q2. Which of the three core functions of public health involves evaluating the
effectiveness, accessibility, and quality of personal and population-based health
services?
A. Assessment
B. Policy Development
C. Assurance
D. Regulation
Rationale: Assurance is the core function that ensures services are available,
accessible, and of high quality; assessment involves data collection, and policy
development involves creating health policies based on data.
Q3. When analyzing the social determinants of health (SDOH), a nurse identifies that a
neighborhood lacks access to fresh produce and has multiple fast-food outlets. This
environment primarily impacts which determinant?
A. Education access and quality
B. Economic stability
C. Neighborhood and built environment
D. Health care access and quality
Rationale: The neighborhood and built environment includes access to healthy foods,
quality of housing, and environmental conditions; lack of fresh produce directly relates
to the built environment's impact on nutrition and health.
Q4. A public health nurse is working to reduce the incidence of healthcare-associated
infections by ensuring all hospital staff adhere to strict hand hygiene protocols. This
is an example of which Essential Service of Public Health?
A. Monitor health status to identify community health problems
Page 2
Comprehensive Practice Review
Questions and Answers with Detailed Rationales
Aligned with 2026 | 2027 Curriculum Standards
Community and Public Health Nursing
50 Questions | Five Core Content Domains
June 2025
Academic Review Paper
, WGU D450 Community Health HESI | Comprehensive Practice Review
Abstract
This academic review paper presents a comprehensive collection of fifty (50) practice
questions designed for the WGU D450 Community Health course and the Health Education
Systems, Inc. (HESI) standardized examination. The questions are organized across five
foundational domains of community and public health nursing: (1) Foundations of
Community and Public Health Nursing, (2) Epidemiology and Biostatistics in Population
Health, (3) Environmental and Occupational Health, (4) Community Assessment, Planning,
and Program Implementation, and (5) Disaster Management, Global Health, and Vulnerable
Populations. Each question is accompanied by the correct answer and a detailed
evidence-based rationale that explains the underlying public health concepts. The
content is aligned with Healthy People 2030 objectives, the ten Essential Public Health
Services, and the core functions of public health (assessment, policy development, and
assurance). This review serves as an academic resource for nursing students preparing
for licensure and certification examinations in community and public health nursing
practice.
Keywords: community health nursing, HESI examination, public health, epidemiology,
health promotion, disease prevention, environmental health, disaster management,
vulnerable populations, Healthy People 2030
Page 1
, WGU D450 Community Health HESI | Comprehensive Practice Review
Section 1: Foundations of Community & Public Health
Nursing (Q1-Q10)
Q1. A community health nurse is organizing a free blood pressure and blood glucose
screening event at a local community center. Which level of prevention does this
activity represent?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Primordial prevention
Rationale: Secondary prevention focuses on early detection and screening for diseases to
initiate prompt treatment; primary prevention prevents disease onset, and tertiary
prevention manages existing disease to prevent complications.
Q2. Which of the three core functions of public health involves evaluating the
effectiveness, accessibility, and quality of personal and population-based health
services?
A. Assessment
B. Policy Development
C. Assurance
D. Regulation
Rationale: Assurance is the core function that ensures services are available,
accessible, and of high quality; assessment involves data collection, and policy
development involves creating health policies based on data.
Q3. When analyzing the social determinants of health (SDOH), a nurse identifies that a
neighborhood lacks access to fresh produce and has multiple fast-food outlets. This
environment primarily impacts which determinant?
A. Education access and quality
B. Economic stability
C. Neighborhood and built environment
D. Health care access and quality
Rationale: The neighborhood and built environment includes access to healthy foods,
quality of housing, and environmental conditions; lack of fresh produce directly relates
to the built environment's impact on nutrition and health.
Q4. A public health nurse is working to reduce the incidence of healthcare-associated
infections by ensuring all hospital staff adhere to strict hand hygiene protocols. This
is an example of which Essential Service of Public Health?
A. Monitor health status to identify community health problems
Page 2
